“Transderma’s oil-free vitamin serums are a favorite of mine, particularly their Vitamin A Serum. It has retinol in it, so it’s perfect to throw on before bed. [advanced_iframe securitykey=”da39a3ee5e6b4b0d3255bfef95601890afd80709″ src=”http://www.refinery29.com/beauty-nation/aimee-blaut/real-girl-real-beauty/slideshow?page=2#slide-12″]